Not all LED's use PWM for backlighting
http://www.youtube.com/watch?v=RlUHBQDlYgA
Personally, I only heard of this problem on PC monitors, not on HDTVs.
http://www.youtube.com/watch?v=RlUHBQDlYgA
Personally, I only heard of this problem on PC monitors, not on HDTVs.